Ecler MAC90v User manual

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INSTRUCTIONS MANUAL MAC90v

1. IMPORTANT REMARK 04

1.1. Safety Precautions 04

2. INTRODUCTION 04

3. INSTALLATION 05

3.1. Placement and mounting 05

3.2. Connectable Signal Sources 05

4. OPERATION AND USE 06

4.1. Start up 06

4.2. Monitoring 06

4.3. Channel gain and equalization 07

4.4. Using the CROSSFADER 07

4.5. Auxiliary send 08

4.6. AUX input 08

4.7. Inserts 08

4.8. Talkover 08

4.9. Outputs 08

5. CONSIDERATIONS 09

5.1. Ground loops, background noise 09

5.2. Cleaning 09

6. TECHNICAL CHARACTERISTICS 36

7. DIAGRAMS 37

7.1. Configuration diagram 37

7.2. Function list 38

7.3. Function diagram 40

7.4. Block diagram 41

All numbers subject to variation due to production tolerances. ECLER S.A. reserves the right to make

changes or improvements in manufacturing or design which may affect specifications.

4

1. IMPORTANT REMARK

We thank you for trusting on us and choosing our MAC90v mixer. In order to get the

most in operation and efficiency from your mixing unit, it is VERY IMPORTANT for you - before

you plug anything - to read this manual very carefully and take seriously into account all

considerations specified within it.

In order to guarantee the optimum operation of this unit, we strongly recommend that

its maintenance be carried out by our Authorised Technical Services.

1.1. Safety Precautions

This apparatus must be earthed through its mains cable.

Do not expose the unit to rain or water splashes, and do not place liquid containers or

incandescent objects like candles on top of the unit. Do not obstruct the ventilation

shafts with any kind of material.

Any change in the configuration of the unit must be carried out by a qualified technician.

Should any connection / disconnection task be done, always disconnect the unit from the

mains supply.

There are no user serviceable parts inside the unit.

2. INTRODUCTION

The MAC90v mixer is designed for its use in discotheques, ballrooms, bars, disco bars

and external P.A. applications.

The MAC90v has 8+1 mixable channels, i.e. 8 channels with conventional sliding fader

plus one special channel for the effect return with rotary potentiometer, which can be used to

input normal line-level signals from any source. It features 12 stereo inputs: 3 PHONO, 4 HIGH

LINE (high line level for compact disc, DAT, MP3 players), and 5 LOW LINE, AUX RTN and MIX;

plus 4 more inputs for balanced microphones (XLR 3). The AUX RTN input connector is duplicated

on the front panel (13), so an additional sound source (portable CDs, portable DAT, or even

walkmans) can be instantly connected to the mixer without having to change fixed configurations.

All channels have a lever switch input selector, independent gain control and 3-band

tone controls. The MAC90v also has a removable, externally exchangeable CROSSFADER to

which any channel can be assigned via a set of switches with LED indicator to show which

channels are currently routed to what side of the crossfader.

All inputs are PFL-capable in order to visually (through the VU meters) and

acoustically (through headphones) monitor any signal connected to the inputs of the unit.

In the MAC90v, we have cared specially about the roughness, long-time response and

maximum adaptability to the DJ needs, getting a total ease of operation.

5

3. INSTALLATION

3.1. Placement and mounting

The first thing to take into account when looking for the placement of the MAC90v is

your comfort and an easy access to all the connections.

The MAC90v has 19" (482.6 mm), 8U (355 mm) rack mounting ears that allow you

to place it in a standard rack.

Because of the high gain of the PHONO and MIC inputs, the mixer must be placed as

far as possible from noise sources (dimmers, engines, etc.) as well as from any mains cable.

You should never, under any circumstance, remove the metallic cover of the mixer.

The MAC90v, being a low consumption unit, does not need any cooling; you should

anyway avoid exposure to extreme temperatures and the operating environment must be as dry

and dust free as possible.

The MAC90v operates under voltages between 90 and 264 V at 47 to 63 Hz. All

models of the MAC v-series feature an over dimensioned power supply that adapts to the

mains voltage in any country of the world with no need to make any adjustments.

In order to protect the mixer from eventual mains overloads, it has a time-lag 0,5 A

(60) mains protection fuse. Should this fuse ever blow off, disconnect the mixer from mains

and replace it with an identical one. NEVER REPLACE THE FUSE WITH ANOTHER ONE WITH A

HIGHER VALUE.

ATTENTION: Changing the fuse must be performed by qualified technical personnel.

3.2. Connectable Signal Sources

- Turntables / Phono: They must be fitted with a magnetic cartridge with nominal

output level between -60dBV and -20dBV (1 to 100 mV). The PHONO (46) inputs of the

MAC90v have a high headroom (margin before saturation) and it can handle higher output

cartridges than what is usual. These inputs are supplied with a nominal input sensitivity of

-40dBV (10mV).

- Microphones: The MIC inputs (43) are ready for a nominal input level of -50dBV

(3.16 mV) and are equipped with XLR 3 connectors. These inputs provide, through the input

selector (1) at ATT position, an input sensitivity reduction of 20dB; this is, from -50 to

-30dBV (3.16 to 31.6mV). The connection of balanced signals is as follows:

Hot or direct signal > Pin 2

Cold or inverted signal > Pin 3

Ground > Pin 1

Low impedance (200 to 600:) monophonic microphones must be used. In case of

working with an unbalanced connection Pin 1 and Pin 3 must be short-circuited.

The MAC90v features a Phantom power supply for the connection of condenser

microphones. A switch for general activation of the phantom power can be found on the front

panel of the unit (15). However, a set of internal jumpers allow you to inhibit the phantom

power for individual microphone inputs. The default setting of these jumpers on the MAC90v is

"Phantom ON". See configuration diagram.

6

-LINE Inputs. Given the important level differences between usual LINE and CD

sources (e.g. Tape decks), the MAC90v provides specialized inputs for each source. The

sensitivity of the HIGH LINE input (45) is 0dBV (1V), while the LOW LINE (44) sensitivity is

-10dBV (316mV).

Compact disc, DAT, MP3, DVD Audio... should be connected to the HIGH LINE input.

Tape recorders, cassettes, tuners, videos... should be connected to the LOW LINE input.

- Headphones: In order to achieve the best performance, they should be high

impedance type (200-600

:

). They must be connected to the HEADPHONES OUT (34)

connector, a standard ¼" stereo jack. Connect ground to sleeve, ring to right and tip to left.

- Other mixers: The MIX (49) input provides a direct access to the main mix bus, so

this is a perfect input for another mixer to be plugged in without using up a regular input.

- Power amplifiers: See paragraph 4.9.

4. OPERATION AND USE

4.1. Start up

Power up the mixer by pushing the POWER (16) switch. The green pilot-light,

integrated into the switch itself, will immediately light up. Although the noise generated by

powering up the MAC90v is reduced to a bare minimum and is nearly null with the MASTER

(26, 33) faders down, it is always advisable not to forget about this power-up sequence: sound

sources, mixer, equalizers, active filters and power amplifiers. Power down the equipment by

following the inverse sequence. This way the peaks or transients produced by powering

up / down a device do not affect the following one in the audio chain and, as a result, they do

not reach the loudspeakers, which are the most vulnerable audio elements in this case.

4.2. Monitoring

The MAC90v is equipped with an acoustical and visual monitoring system, through

headphones, CUE output and VU METER. When switching ON any of the PFL buttons, signal(s)

present at the input(s) will be seen at the VU METER. If no switch is at the ON position, the

signal present at the main mix bus is heard (open faders). By pushing the OUT1/OUT2/AUX

buttons, the right VU-Meter displays the signal present at the output 1 or output 2. If no switch

is at the ON position, the signal present at the main mix bus is shown (open faders).

It is also possible to monitor through the CUE (55) output. This output carries the very

same signal as the headphones output does. Its nominal output level is 0dBV (1V) and it is

controlled by the rotary knob CUE VOL (36).

7

4.3. Channel gain and equalization

These controls allow individual input sensitivity and tone adjustments for each

channel.

Thanks to the GAIN (2) control, you can precisely adjust the signal level of an

incoming musical signal to match the level of the music that is playing on air through another

channel. This operation may be performed visually (through the left VU-meter) and acoustically

(through the headphones), successively comparing both signals with the PFL buttons. The Gain

knobs offer an adjustment range of ±20dB.

The tone controls (3, 4, 5) of channels 1, 2, 3, 4, 5 and AUX have a range of -20 to

+10dB, while channels 6, 7 and 8 range from CUT to +10dB.

4.4. Using the CROSSFADER

The MAC90v provides a short travel sliding potentiometer placed horizontally. This

potentiometer is called CROSSFADER (38) and enables a direct mixing of the signals present at

any inputs (except auxiliary channel). This allows the DJ to prepare the mix and simply

crossfade back and forth between them.

Two pushbuttons on each channel let you assign that channel to either side of the

Crossfader. XFA (10) sends the signal to side A and XFB (11) to side B of the crossfader. Two

corresponding LED indicators help to identify which cannel is assigned to what side of the

Crossfader.

If none of these two switches is activated, the signal bypasses the crossfader circuit

and passes directly to the main mix bus and the corresponding MIX LED lights up. These

switches also serve when assigning the talkback activation channel(s) (see paragraph 4.8).

If, instead of using the crossfader, you would like to have two auxiliary mixing

channels at the XFA and XFB outputs, the cossfader potentiometer can be substituted with a

blind module Ref. BC01. This way, two more submixes can be made, apart from the main mix,

or two more auxiliary outputs can be available.

The MAC90v's CROSSFADER is based around an electronic VCA circuit that greatly

extends its life and additionally has the great advantage of being removable and replaceable by

yourself. To do so, just follow these instructions:

1- Remove the screws of the plate that hold the CROSSFADER.

2- Remove the set from the mixer.

3- Detach the multipin connector.

4- Replace the whole set or remove the screws that tie the potentiometer.

5- Tie the new potentiometer and the associated printed circuit and multipin

connector to the plate.

6- Attach the multipin connector.

7- Place the set on the mixer.

8- Fix the screws of the plate.

8

4.5. Auxiliary send

The MAC90v is equipped with a stereo bus of auxiliary sends, AUX (6). This send is

factory preadjusted to postfader, this is, any change on the channel fader (12) affects the level

present at the output of the auxiliary bus AUX OUT (53). This setting can be internally modified

and converted to prefader by simply changing a jumper, as seen in the configuration diagram.

4.6. AUX input

An AUX IN (13, 48) allows the return of the signal once it has been processed by an

external effect. This input can also be used as a regular HIGH LINE level input. The bus to

which it is assigned can be configured with internal jumpers (see configuration diagram). It is

factory preadjusted to PGM bus.

4.7. Inserts

Plugging a 6,35 mm stereo jack to the INS connector (there is a connector for each of

the L left and R right channels (41, 42), the microphone signal can be redirected to a particular

effect for that input only. Sleeve is ground, tip is send and ring is return. If you use a mono

jack, instead of a stereo one, with the ring short circuited to ground there are two new

applications:

- If you plug the jack fully in, this works as an output, having a post-preamplifier signal and

cutting its way to the main mix bus.

- Plugging the jack "halfway in", only to the "first click", you get a direct post-preamplifier

signal, but the sound ALSO goes its way to the main mix bus.

4.8. Talkover

Assignment: The channels that have both XFA and XFB simultaneously depressed

(MIC indicator lit) automatically reduce the signal level of the channels that have the crossfader

buttons in any other position and of course have open faders. This happens at the first voice

"hit" of the DJ or speaker on the microphone plugged to the channel with both XF buttons

pressed. When the DJ stops talking the music level comes up to the initial level.

Usage: The talkover is enabled through the ON (32) switch, and has efficiency, EFF

(37), main signal level attenuation (between 0 and 30 dB) and recovery time, TIME (39), the

time necessary for a progressive come back to the original level (between 0,1 and 3 sec).

4.9. Outputs

The MAC90v mixer has two independent outputs, OUT1 and OUT2. Each one has its

own volume control, with a sliding fader for OUT1 (33), and a rotary one for the OUT2 (26).

Both outputs have a dedicated balance control BAL (29, 23).

You must be careful when setting up the general output level of the mixer. The "clip"

display of the connected power amplifiers must never remain permanently lit, but do it only

occasionally by following the rhythm of the bass signals that are being played.

The MAC90v mixing unit is factory adjusted at 0dBV/1V, although this output can be

internally modified to +6dBV/2V. See configuration diagram.

9

The OUT1 output (56, 57) is balanced or symmetrical, and the pin-out of the

connector is as follows:

Hot or direct signal > Pin 2

Cold or inverted signal > Pin 3

Ground > Pin 1

The balanced circuit simulates an output transformer, so if you wish to use OUT1 in

non-balanced mode, you should short circuit the unused pin to ground. Otherwise, the signal

will not have an appropriate level and quality.

The OUT2 output (58) is non-balanced or asymmetrical.

The MAC90v has two recording outputs: REC1 (52), which is pre-talkover, i.e. no

signals which activate the talkover (both XF buttons pressed and MIC indicator lit) are passed

to this output, so no attenuation occurs, and REC2 (54), which is influenced by the talkover.

Finally, a MONO (30) switch that converts an stereo signal into a monophonic one or

sends one side to both channels. This switch affects the outputs OUT1, OUT2, and REC2.

AUX OUT (53) provides an output for the auxiliary bus (see paragraph 4.5).

The CUE output (55) allows for easy monitoring along with an external amplification

system and carries the very same signal as the HEADPHONES output.

5. CONSIDERATIONS

5.1. Ground loops, background noise

You should always make sure that the signal sources coming to the unit, as well as all

devices connected to its outputs, do not have their grounds interconnected, that is; ground must

never come from two different devices. Should this ever happen, noises could occur and seriously

interfere the sound quality.

Cable shielding, when connected to the chassis, must never be interconnected, so as to

avoid ground loops.

The MAC90v mixer has been designed for the lowest possible background noise.

Independently from the electronic design itself, background noise level will directly depend on the

right installation and use of the mixing unit.

I. e.: setting a channel VOL to "2" and the output to "10" is not the same as the other

way round. In the first case, the signal coming to the mixing amplifier - which has got its own

noise - is low, and so is the signal-to-noise ratio (low signal). When the output amplifier boosts the

whole signal we will get a very high background noise. In the second case - with the channel

fader at maximum - the mixing level is high, and so is the signal-to-noise ratio. When the signal

reaches the VOL OUTPUT and is boosted, it will keep a much better signal-to-noise ratio than in

the preceding case.

5.2. Cleaning

The front panel should not be cleaned with dissolvent or abrasive substances because

silk-printing could be damaged. To clean it, use a soft cloth slightly wet with water and neutral

liquid soap; dry it with a clean cloth. Be careful that water never gets into the amplifier through

the holes of the front panel.

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36

6. TECHNICAL CHARACTERISTICS 6. CARACTERÍSTICAS TÉCNICAS

6. CARACTÉRISTIQUES TECHNIQUES 6. TECHNISCHE DATEN

Inputs Sensitivity nom/Impedance LINE (LOW) -10dBV/50k:



LINE (HIGH) 0dBV/50k

:



PHONO -40dBV/50k

:



MICRO (BAL) -50dBV/>1k

:

MICRO ATT. (BAL) -30dBV/>1k:

MIX 0dBV/>50k:



INSERT 0dBV/50k

:



Outputs Level/Minimum Load OUT 1 (BAL) 0(+6)dBV*/600:1(2)V



OUT 2 0(+6)dBV*/2.2k

:

1(2)V





CUE 0dBV/10k

:



REC1 0dBV/10k

:



REC2 0dBV/10k

:

XFA 0dBV/2.2k:

XFB 0dBV/2.2k:



INSERT 0dBV/2.2k

:



AUX 0dBV/2.2k

:



HEADPHONES 230mW/400

:



Frequency Response LINE 15Hz÷35kHz -1dB



MICRO BAL 20Hz÷25kHz -1dB



PHONO RIAA ±0.5dB



THD+N LINE <0.03%





MICRO <0.09%





PHONO <0.2%



CMRR MICRO >70dB @ 1kHz



Signal Noise Ratio LINE >95dB

MICRO >85dB

PHONO >80dB

Gain control all inputs GAIN ±20dB

Tone control channel 1 to 5 BASS -20/+10dB

MID -20/+10dB

TREBLE -20/+10dB

Tone control channel 6 to 8 BASS -30/+10dB

MID -25/+10dB

TREBLE -30/+10dB

Kill Filters channel 6 to 8 LOW 200Hz

(cut frequency at -6dB) MID 6.5kHz & 200Hz

Slope 12dB/oct in all the cases HIGH

6.5kHz

Phantom voltage +18VDC/5mA max

Mains 90-264VAC 47-63Hz

Power consumption 36VA

Dimensions 482.6x355x109mm

Weight 5.6kg

(*)Internally selectable

37

7. DIAGRAMS 7. DIAGRAMAS

7. SCHÉMAS 7. DIAGRAMME

7.1. Configuration diagram 7.1. Diagrama de configuración

7.1. Diagramme de configuration 7.1. Konfiguration

PHANTOM OFF

JUMPER PIN

CONFIGURATION.

TOP VIEW

C102

R102

C103

C101

J108

R101

J101

R103

J102

J107

off

R106

J105

on

J106

PHANTOM

C104C105

1

J103

1

J104

R105

R104

C101

J107

off

R106

J105

on

J106

PHANTOM

C104

C101

J107

off

R106

J105

on

J106

PHANTOM

C104

0dB

OUT 2

BOTTOM VIEW

CONFIGURATION.

SOLDERING

FACTORY ADJUSTED

OUT 1

OUT 2

PHANTOM

0dB

ON

+6dB

0dB

OUT 1

+6dB

XFB XFA MIC PGM

PREFADER

POSTFADER

AUX ASSIGNMENT

INPUTS 1 TO 8

BUS ASSIGNMENT

AUX ASSIGNMENT INPUT 1-8 POSTFADER

PGMBUS ASSIGNMENT AUX

PHANTOM ON

AUX INPUT

38

7.2. Function list 7.2. Lista de funciones

1. Input selector 1. Selector de entradas

2. Input sensitivity adjust, GAIN 2. Ajuste de la sensibilidad de entrada, GAIN

3. Treble control, TREB 3. Control de agudos, TREB

4. Midrange control, MID 4. Control de medios, MID

5. Bass control, BASS 5. Control de graves, BASS

6. Auxiliary send control, AUX 6. Control de envío a auxiliar, AUX

7. LED indicator PFL 7. Indicador luminoso, PFL

8. Prefader listening control, PFL 8. Conmutador de preescucha, PFL

9. LED indicator 9. Indicador luminoso

10. Send to XFA switch 10. Conmutador de envío, XFA

11. Send to XFB switch 11. Conmutador de envío, XFB

12. Channel gain, FADER 12. Control de volumen de la vía, FADER

13. Auxiliary front panel input, AUX 13. Entrada frontal auxiliar, AUX

14. LED indicator, PHANTOM 14. Indicador luminoso, PHANTOM

15. Phantom switch, PHANTOM 15. Conmutador phantom, PHANTOM

16. Switcher and start up pilot, POWER 16. Interruptor y piloto puesta en marcha, POWER

17. LED indicator, MIX 17. Indicador luminoso, MIX

18. LED indicator, PFL 18. Indicador luminoso, PFL

19. LED indicator, OUT 1 19. Indicador luminoso, OUT 1

20. Prelistening switch, OUT1 20. Conmutador de escucha, OUT 1

21. LED indicator, OUT 2 21. Indicador luminoso, OUT 2

22. Prelistening switch, OUT2 22. Conmutador de escucha OUT 2

23. Balance control OUT 2, BAL 23. Control de balance OUT 2, BAL

24. LED indicator, AUX 24. Indicador luminoso, AUX

25. Prelistening switch, AUX 25. Conmutador de escucha, AUX

26. Volume control OUT 2, VOL 26. Control de volumen OUT2, VOL

27. LED VU Meter 27. Vu-meter a leds

28. LED indicator, MONO 28. Indicador luminoso, MONO

29. Balance control OUT 1, BAL 29. Control de balance OUT 1, BAL

30. Mono/Stereo switch, MONO 30. Conmutador de mono-estéreo, MONO

31. LED indicator, TALKOVER 31. Indicador luminoso, TALKOVER

32. Talkover, ON 32. Puesta en marcha Talkover, ON

33. Volume control OUT 1, MASTER 33. Control de volumen OUT1, MASTER

34. Stereo jack, headphones, PHONES 34. Jack estéreo auriculares, PHONES

35. Headphones volume control, VOL 35. Control de volumen auriculares, VOL

36. Cue volume control, CUE 36. Control volumen cue, CUE

37. Talkover effect control, EFF 37. Control de efecto talkover, EFF

38. Crossfader control, CROSSFADER 38. Control de crossfader, CROSSFADER

39. Talkover Recovery time control, TIME 39. Control tiempo de recuperación talkover, TIME

40. Channel gain, VOL 40. Control de volumen de la vía, VOL

41. Effect input/output. Left channel, INSERT L 41. Entrada/salida efectos canal izquierdo, INSERT L

42. Effect input/output. Right channel, INSERT R 42. Entrada/salida efectos canal derecho, INSERT R

43. Microphone balanced input, MIC 43. Entrada balanceada de micrófono, MIC

44. Line input, L LINE 44. Entrada de línea, L LINE

45. Line input, H LINE 45. Entrada de línea, H LINE

46. Phono input, PHONO 46. Entrada de phono, PHONO

47. Ground pin, GND 47. Borne de toma de masa, GND

48. Auxiliar input, AUX IN 48. Entrada auxiliar, AUX IN

49. Mix input, MIX 49. Entrada de mezcla, MIX

50. Xfa output, XFA 50. Salida xfa, XFA

51. Xfb output, XFB 51. Salida xfb, XFB

52. Recording output, REC 1 52. Salida de grabación, REC 1

53. Auxiliary output, AUX OUT 53. Salida auxiliar, AUX OUT

54. Recording output, REC 2 54. Salida de grabación, REC 2

55. Cue output, CUE 55. Salida cue, CUE

56. Left channel balanced output, OUT1 L 56. Salida balanceada canal izquierdo, OUT1 L

57. Right channel balanced output, OUT1 R 57. Salida balanceada canal derecho, OUT 1 R

58. RCA output, OUT2 58. Salida RCA, OUT 2

59. Mains socket 59. Base de toma de red

60. Fuse holder 60. Portafusibles

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50.0059.01.02

ECLER Laboratorio de electroacústica S.A.

Motors 166168, 08038 Barcelona, Spain

INTERNET http://www.ecler.es Email: info@ecler.es

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